A former Spokane Public Schools parent is suing the district, claiming that staff at a North Side elementary school wouldn't let her daughter use the bathroom and forced the girl to sit in her own urine. Virla Spencer, who last year filed a civil rights complaint against the district, is seeking damages for negligence from a March 30, 2005, incident in which her daughter was denied access to the bathroom at Arlington Elementary School, according to a lawsuit filed in Spokane County Superior Court last week.